Fears as China issues its highest possible air pollution alerts

ENVIRONMENTAL authorities in China have advised 23 northern cities to issue red alerts, the highest possible air pollution warning, today, against the "worst" smog the country has experienced since autumn, state media said.

China issued its first red alert for smog in Beijing, the capital, last December, after adopting a colour-graded warning system in a crackdown on environmental degradation left by decades of breakneck economic growth.

Officials in Beijing issued a red alert on Thursday after the Ministry of Environmental Protection (MEP) warned of a smog build-up across China's north, saying the alert was expected to run until Dec 21.

The ministry has also advised 22 more cities reeling under pollution to issue the red alert warning, the official China Daily said today.

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Nine cities, including Jinan in the province of Shangdong were advised to issue the lower-status orange alert, Liu Bingjing, the ministry's head of air quality management, told the paper.

The notification will be the third joint warning by city governments this month, Liu added.

Regular episodes of smog blanketing northern China this year stem from a combination of local emissions, unfavourable weather and pollutants wafted in from elsewhere, Bai Qiuyong, head of China's Environmental Monitoring Center, told the paper.

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Smog is an increasing problem in China's industrialised cities

Environmental authorities in Hebei province, which borders capital city Beijing, asked for a level one emergency response from major cities in the region to begin from Friday, according to a post on its official Weibo account late on Thursday.

The order requires the large number of heavy polluting industries in these cities, including in Tangshan, China's steel capital, to cut back or halt production until Wednesday.

Red alerts are issued in Beijing when the air quality index, a measure of pollutants, is forecast to break 200 for more than four days in succession, surpass 300 for more than two days or overshoot 500 for at least 24 hours.

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Factories have been ordered to cut back production until at least Wednesday

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Thu, December 3, 2015

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